Attachment for doors



' UNITED s'raras.

HERMAN SOELLNER, or BROOKLYN, NEW YORK.

ATTACHMENT FortV nooas. I

7 1o @ZZ/(whom it may conccm:

Be it known that I, HERMAN citizen of the vUnited States, and resident of the borough of Brooklyn, county of Kings,

city and- State of New York, have invented certain new' and useful improvementsl in Attachments for Doors, of which the followis a speciiication.

in f

ly invention relates to doors and more.

particularlyy to doors which are'hung on hinges comprising two Vsections pivotally connected by means ot removable pintles. Although the latter are located upon the inside, when the door is closed, it has heretoiore been possible to remove said pintles trom the outside by inserting a suitable instrument between the door and the casing, thus permitting a separation of the hinge sections and a consequenty opening of, the door whereby an illegitimate entrance may be effected. To prevent such opening of the door, even afterl the hinge pintles have been removed, bolts have been provided to bridge the joint between the door and casing and to interlock one with the other, said bolts being carried either by the 'doorV or the casing and projecting into a suitable recess in the casing or the door when the latter is'closed. Be cause these bolts are capable of being sawed in two through the joint between the door and casing, they have been` only partly lsatisfactory to prevent illegitimatev forcing of said door. The particular objectl of my invention is to overcome these objections by providing bolts of improved construction whereby the door and casing are interlocked and which it is impossible to saw through or v Votherwise render ineffective when the door elevation of the casingand door with the latter in its open position; Fig. 2 is afragmen-tary tace view, partlyA broken away and on an enlarged scale; Fig. 3 is a section on the line 3-3 of Fig. 2; Flg. 4 is an end view of one form of bolt; and Fig. 5 is a side view partly in section of another form of bolt "l Specification of Lettersatent.

SOELLNER, a

.Patent-editar. V1, 192,1.

Application le'dnay 29, 1920. serial No. 385,169.

ln the drawings, vlOis the door and 1lthe l door frame or casing, both of which may be of any conventional formv and construction, the door 10 beingv hung-fin the casing 11 by means of hingesv comprisingsections ,12 secured'respect'ively to the door and its casing and pivotally connected through the medium `offremovable1 pintles 13 inthe well known way. The customary strip'lt isatt-ached to thecasingy V1 1 "means of nails orother fastoning devices 15 adjacent toV the hinged" edge 0f said door. As so 'far described, the oonetructlo'n and arrangement 'may be of any well known type and may include'any'dfeatures commonly Vvfound in doors oit'V the kind in question.'

My invention" comprises'- a metallic member 16, which foroonvenience off descriptionV I have termed a bolt-and whichzislA provided with arecess 17 inl which'a freelyl moving insert 18 is located, said insert being preferably inthe form of a hardenedstecl ball of y a diameter to substantially fill the recess 17 and yet be freely movable therein. The form or shape and dimensions yof the insert" 18' are O} ;iti ona`l, the essential requirements being' that 1t must be `Jfreely movable in the recess and shouldbe constructed of a'mate. j

not readily out;` or` otherwise rial which is severed. n

In use the bolt 16 maybe mounted upon the door y10 in registry with a pocket 19 formed in the door casing'll, the parts being so arrangedand proportioned that, when' the door isclosed, the bolt will bridge the joint a betweensaid door and casing'V and project into thepocketi'19, the ball or'other insert 18 being in registrywithsai'd joint a aslshown in Fig. 2., Or if desired'. the bolt 16 may be fixed in the casing 11 in which case the cooperating pocket 19 is formed in the door V10, the operation and location of the parts being otherwise just'the same as previously described. f

In some instances it may be desirable to provide a plurality of bolts carried .either by the door or by the casing or, as shown in Figs. 1 and 2, alternately tiXedy upon said door and casing. The bolt 16 may be positioned so that its axis extends at right angles to the upright edge of the door or casing in which event the ball or other insert 18 may be prevented from lfalling outr indicated at b in Fig. 5; or the bolt 16 may be located with its axis inclined downwardly relatively to the kedges ofthe door or cas-k ing, as shown at the lower portion of Fig. 2. The bolt 16 may be externally screw-threaded and screwed into the door 10 or casing 11 in which case the recess 17 is of hexagonal or other angular cross-section as shown in Fig. 4 for the accommodation of a suitable tool whereby rotation of the bolt on its axis is facilitated or said bolt may be smooth as in Fig. 5 and simply be driven into the door or casing and held therein by friction.

It will be noted, when the door is closed and locked that the bolt or bolts 16 bridge the joint la between the door and its casing and interlock the same, so that even if the pintles 13 `have been successfully removed from the hinges by means of aA suitable tool insertedbetween the door and casing after.

the strip lll1 has been removed, it will be impossible to moverthe door out of the casing. If upon realizing this an intruder should attempt to sever or cut the bolts 16 by inserting and operating a thin saw or otherV cutting tool betweenV said door and casing, such attempt will be frustrated the moment the saw or other'cutting tool reaches the freely movable insert 18. A continuation of the attempt to cut the bolts after this has happened will either simply cause the inl sert to rotate under the action of a saw or otherwise jam or wedge the saw between the insert and the bolt against further actuation; the insert will also positively prevent a. chisel from being successfully used to cut thebolt, by deflecting and chipping said cl1isel',and thus rendering it useless to force f an illegitimate entrance.

j, ment having a recess arranged to register with said pocket, and a spherical insert loosely mounted in said recess, and projecting beyond the joint between thegdoor and the frame into said pocket.

2. The combination of va door frame, a door hung therein, o ne of said elements being provided with a poclret,fa recessed bolt fixed upon the othery element and projecting therefrom across the joint between said door and frame into said pocket, when the door is closed, and a spherical insert loosely mounted in the recess of said bolt in registry with said joint.

The combination of a door frame,` a

door hung therein, oneof said elements be- Y ing provided with a pocket, a recessed boltv fixed upon the other element and projecting therefrom across the joint betweenk said door and frame into said pocket when theV door is closed, the axis of said bolt being inclined in a vertical plane, and a spherical insert looselyimounted in the recess of said bolt in registry with said joint. v

4,. |The combination of adoor and its casing and an attachment arranged to bridge a joint between said door and casing for preventing forcing of the door, said attachment comprising a bolt having an axialy recessopen at one end Vand a spherical insert loosely mounted in said recess. Y Y

The combination of a door and its casing and an attachment arranged to'bridge a joint between the said door and easing for preventing forcing ofthe door, said attachment comprising a bolt having an axial recess open at one end, a spherical insert loosely mounted in said recess, and means for maintaining said insert against unintentional removal from said recess.

n testimony whereof I have hereunto set my hand.

HERMAN SOELLNER. 

